[Rd] update.packages forces Tcl/Tk interface despite ask=TRUE if the DISPLAY environment variable is set (PR#8115)
robert.king at newcastle.edu.au
Wed Aug 31 22:16:50 CEST 2005
Full_Name: Robert King
OS: Linux (debian stable, with backport R)
Submission from: (NULL) (188.8.131.52)
update.packages documentation (and code, from what I can make out) says:
ask: logical indicating whether to ask user before packages are
actually downloaded and installed, or the character string
'"graphics"', which brings up a widget to allow the user to
(de-)select from the list of packages which could be updated.
The latter only works on systems with a GUI version of
'select.list', and is otherwise equivalent to 'ask = TRUE'.
But, if I try ask=TRUE, it tries loading the Tcl/Tk interface (which I found out
because I'm doing this remotely and it crashed.
--- Please select a CRAN mirror for use in this session ---
Loading Tcl/Tk interface ... Error in fun(...) : Tcl already loaded
Error: .onLoad failed in 'loadNamespace' for 'tcltk'
On the other hand, if I log out and ssh back with X forwarding turned off, it
does the right thing,
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